検索キーワード： 論理学・言語学

フレーゲからラッセル、そしてウィトゲンシュタインへ――二十世紀初頭、言葉についての問いと答えが重なりあい、つながりあっていった。天才たちの挑戦は言語哲学の源流を形作っていく。

ことばが世界をつくるのか。世界がことばをつくるのか。元オリンピアンで著作も多く、「走る哲学者」とも呼ばれる為末大氏。

人間が言語に規定された存在であることは二〇世紀の哲学の前提だった。二一世紀に入って二〇年が過ぎたいま、コミュニケーションにおける言葉の価値は低下し、〈言語を使う存在〉という人間の定義も有効性

あなたは誰のメガネで世界を見ているのか　自分の頭で思考する限り、すべての人は「自分バイアス」を持っている。

Philosophical Investigations was published in 1953, two years after the death of its author. In the preface written in Cambridge in 1945 where he was professor of philosophy he states: ‘Four years ago I had occasion to re-read my first book (the Tractatus Logico-Philosophicus) and to explain its ideas to someone. It suddenly seemed to me that I should publish those old thoughts and the new ones together: that the latter could be seen in the right light only by contrast with and against the background of my old way of thinking.’

Upon its first English publication in 1959, Popper's The Logic of Scientific Discovery revolutionized thinking about the scientific method. Largely an exploration of the demarcation problem, or what distinguishes science from non-science, Popper introduced and defended his concept of falsifability -- that scientific systems are ones open to empirical disconfirmation -- against the prevailing views of his day.

For millennia, philosophers and scientists have been trying to unlock the secrets of the mind with only limited success—until now. Today, with modern technologies including the best in neuroscience, medical imaging, and recent advances in artificial intelligence, we are making more progress than ever before. In Introduction to Cognitive Science, Professor Thad A. Polk takes you on a fascinating tour of the latest discoveries in the relatively new field of cognitive science. In 24 exciting lectures, Professor Polk shares dozens of the most challenging questions in cognitive science today.

"Philosophy is not a theory," asserted Austro-British philosopher Ludwig Wittgenstein (1889-1951), "but an activity." In this 1921 opus, his only philosophical work published during his lifetime, Wittgenstein defined the object of philosophy as the logical clarification of thoughts and proposed the solution to most philosophic problems by means of a critical method of linguistic analysis.

Daniel Everett, then a Christian missionary, arrived among the Pirahã in 1977 - with his wife and three young children - intending to convert them. What he found was a language that defies all existing linguistic theories and reflects a way of life that evades contemporary understanding. The Pirahã have no counting system and no fixed terms for color. They have no concept of war or of personal property.

This classic work of political theory and practice offers an account of the modern Machiavellians, a remarkable group who have been influential in Europe and practically unknown in the United States. The book devotes a long section to Machiavelli himself as well as to such modern Machiavellians as Gaetano Mosca, Georges Sorel, Robert Michels and Vilfredo Pareto. Burnham contends that the writings of these men hold the key both to the truth about politics and to the preservation of political liberty.

In the 21st century, humanity is reaching new heights of scientific understanding - and, at the same time, appears to be losing its mind. How can a species that developed vaccines for COVID-19 in less than a year produce so much fake news, quack cures and conspiracy theorising? Pinker rejects the cynical cliché that humans are an irrational species. Instead, he explains that we think in ways that are sensible in the low-tech contexts in which we spend most of our lives, but fail to take advantage of the powerful tools of reasoning we have built up over the millennia.

Why can’t you light a candle in a spaceship? What books are bad for you? Is nature natural? Every year Oxford and Cambridge’s learned professors pose such curious conundrums to potential students to separate the wheat from the chaff, and the clever from the both of them. Do You Think You’re Clever? provides dazzling answers to 60 of these infamously perplexing problems... How would you measure up against Oxbridge’s sharpest minds?

Le bon sens est la chose au monde la mieux partagée, car chacun pense en être si bien pourvu que ceux même qui sont les plus difficiles à contenter en toute chose, n'ont point coutume d'en désirer plus qu'ils en ont.

Logic is often perceived as having little to do with the rest of philosophy, and even less to do with real life. In this lively and accessible introduction, Graham Priest shows how wrong this conception is. He explores the philosophical roots of the subject, explaining how modern formal logic deals with issues ranging from the existence of God and the reality of time to paradoxes of probability and decision theory. Along the way, the basics of formal logic are explained in simple, non-technical terms, showing that logic is a powerful and exciting part of modern philosophy.

Whenever we worry about what to eat, how to love, or simply how to be happy, we are worrying about how to lead a good life. No goal is more elusive. In How to Be a Stoic, philosopher Massimo Pigliucci offers Stoicism, the ancient philosophy that inspired the great emperor Marcus Aurelius, as the best way to attain it. Stoicism is a pragmatic philosophy that teaches us to act depending on what is within our control and separate things worth getting upset about from those that are not.

Noam Chomsky is widely known and deeply admired for being the founder of modern linguistics, one of the founders of the field of cognitive science, and perhaps the most avidly read political theorist and commentator of our time. In these lectures, he presents a lifetime of philosophical reflection on all three of these areas of research to which he has contributed for over half a century.

Your argument is valid and you know it; yet once again you find yourself leaving a debate feeling defeated and embarrassed. The matter is only made worse when you realize that your defeat came at the hands of someone's abuse of logic - and that with the right skills you could have won the argument. The ability to recognize logical fallacies when they occur is an essential life skill. Mastering Logical Fallacies is the clearest, boldest, and most systematic guide to dominating the rules and tactics of successful arguments.

Perhaps the most important work of philosophy after the Allegory of the Cave. Incomparable logic and findings about the things that matter in life with a clear, succinct prose touch.

Language is perhaps humanity’s most astonishing capacity - and one that remains poorly understood. In The Language Game, cognitive scientists Morten H. Christiansen and Nick Chater show us where generations of scientists seeking the rules of language got it wrong. Language isn’t about hardwired grammars but about near-total freedom, something like a game of charades, with the only requirement being a desire to understand and be understood.

Reason is a powerful tool not only for finding our way in an increasingly complex world but also for growing intellectually and emotionally. This short, accessible volume unlocks the dynamics of human reason, helping listeners to think critically and to use reason confidently to solve problems. It enables listeners to think more clearly and precisely about the world, and it tackles a number of profound philosophical questions without getting bogged down with jargon. Topics include knowledge, identity, leadership, creativity, and empathy.